Well-drilling mechanism



Feb. 1o, 1931. R C, MAS'ON 1,792,108

WELL DRILLING MECHANI SM Filed Oct. 1l,- 1926 5 Sheets-Sheet, 1

A TTOR/VE y Feb. l0, 1931. R. c. MASON WELL DRILLING MECHANISM sheets-sheet. 2

Filed Oct. 1l, 1926 w ATTRNE Feb. 10, 1931. R. c. MASON WELL DRIILING MECHANI SM Filed Oct. 111,.' 1926 3 Sheets-Sheet 3 o un w Sw o w mm um @n L wm 4mm o QW. .wmv n o www ,mm um .W5 u m ww o n WN n nv Sw ww w w Qld@ A TTORNEY f Patented Feb. l0, 1931 N UNITED STATES PATENT, OFFICE RICHARD c, MASON, F TULSA, OKLAHOMAY WELL-DRILLING ivincnAnIsM Application filed October 11, 1926. Serial No. 140,809.

`My invention relates to well drillingmechanism and more particularly to means of that character for operating the toolsjof an ordinary standard oil .well drillrig, the principal object of the invention being to adapt the type of planetary gear transmission disclosed in the application for patent-filed by Matthias A. Beck under date ofFebruary 20th,i1926,

Serial Number 89,632, which resulted in Patent No. 1,673,795 issued June 19,1928, for

this purpose. 'Y

In accomplishing this" object I, have provided a novel combinationof elements and details of structure hereinafter described and illustrated in the accompanying drawings,

wherein: 1 i* 1 Fig. l is a perspective view of a part of a standard drillrigand operative mechanismY constructed in accordance with my invention.

l i Fig. 2 is a perspective'view of a parte ofthe same'elements taken from a different angle.

Fig. 3 is anenlarged plan view of a part rof1 the bull and calf wheelelements with their power applying mechanism.

and in turn operating the walking ,beam through crank mechanism as in the usual practice'. Rotatableon the band wheel shaft Gis a' sprocket wheel'7 adapted *for operative engagement from "the `band 'wheel Y shaft through clutch mechanism?indicatedl by Vthe leverA 8 whichextends to an operators position Von the derrick floor.'y

Located adjacent the bandwheel isa vari-' -able speed transmission mechanism of the type disclosed in theapplication of Matthias 5 A. Beel; aforesaid, to which reference maybe `transmission shaft.

Fig-4 is an enlalsedrlaemwlf, .th fails? 1 designates a part of a derrick of ordinary" construction 'comprising the floor 2. f Imcatedf' adjacent the derrick is thefus'ual band wheel 3 operable from a source of power by a belt made for detail construction of the mecha-` msm.

The transmission 9 comprises a shaft 10 constantly rotatable by the belt 11 which runs over the sprocket wheel on the band wheel shaft and over a sprocket wheel 12 on the The transmission is controlled from a system of levers and connections comprising an internal shaft' 13 jour-VV .nalled in suitable bearings and having an operating lever 14 on the derrick floor. Also lixed to vthe internal shaft is a lever 14 having link connection 15 with` a lever=16 'on acam collar 18'fixed to a rod 19 controlling the brake band of the transmission mechanism and co-operating with ai cam 2O on the transv mission housing so that when the lever is moved'inone direction the brake is applied and when moved in another direction the brake'is released.

VvAlso fixed to the shaft'13 is a clutch'shifting arm21f-or operating the clutch 22 that connects the driving sprocket 12l with the transmission shaft s o that when the lever' 111 'is shifted furtherin the direction foil relieving the brake,v the transmission shaft is `connected directly with the power to operate the transmission at high speed.

Rotatable on the? shaft'13 is a sleeve 23 carrying a hand lever 25 and a clutch operating lever 25. The lever 25. is connected through link 26 with one arm of a lever 27 on'a rod-28 journalled in the transmission housing and connected with the low speed gearingin the transmission,` the hub of the lever. 27 having a cam 29 engageable with a' camV 30 onthe housing so 'that whenthe lever is moved in one direction, thelow speed gears areconnected, andwhenmoved in the other direction the gears arereleased.

The lever 27 Y has axsecofnd arm 31 connectedby a linlr,ft2- with an arm. 33 onta rod 34jou`rnalle`dA in the transmission hous-I ing and'operatively connected with the re'- `verse gearing .inI` the transmission, the hub of the arm 33'having acam 35,Fig. 7,- engageable with la cam 36 on the transmission housing, Figs. 1 and 1, the cams on the reverse gearing elements being arranged oppositely to those onthe low speed gear elements so that when the lever 25 is moved in one direction the sleeve is rotated to operate the link 26 and move the lever 27 for operating the cam sets 29-30 and 35-36, and the low gears are released before the reverse gears are connected and vice versa, there being lost motion in` one of thecam sets to permit this openation without interference.

Located adjacent tl e transmission preferably between it and the band wheel is a sand reel 37 of ordinary construction. having4 a shaft 38. Loosely mounted on the shaft 38 and adapted to be keyed thereto by a clutch 42. 1Fig. is a ysprocket wheel 39 carrying a chain belt 40 which is run over a sprocket wheel 441 on kan extension of: the transmission' shaft so that the sand reel sprocket is constantly rotated when, the transn'iission is acting. V

designates a clutch, splined to the sand reel shaft and operable by` a lei-'er 43 which extends to the opefratoi"s position on the derrickiioor so. that the operator controlling the transmission and band wheel may have control of the sand reel without leaving his position. i I

Rctatable on the transmission shaft 10 is a sprocket wheel, havingv chain belt run thereoverand extended beneath the derrick floor to al sprocket wheel 4,6 on a jack shaft 47 `iournalled in bearings on one of the derrick posts. 48. Splined on the transmission shaftv lO is a, clutch member 49 adaptedfor co-operation with aclutchmember 50 on the sprocket 44 to lockvthesprocket tothe transmission shaft, the spline clutch member being. under control of a lever- 5l connected by a link-52, withv ai handlever 53 located adjacent the transmissiomthe. band wheel. and the sandj reel controlling levers.

The` jack shaft ca rries a4 pinion 54U meshing with a pinion 5.570111 a counter-shaft 56 which extends beyond a, vertical faceuof the post 48 and' carries a lixed sprocket wheel The shafts 47 and 56 are journaledfin bearings 58 in said post 48,V and4 spaced therefnom, is bull wheel shaft 59 ournaled in theposts 48Y and carrying a` bulll wheel GO. of ordinary construction upon which al .cable (il is wound asin ordinary practice,

the` bull wheel shaft being provided with brake wheel G2 Carrying a brake band'. 63, the ends ofswhich areY attached to cranks 64 and.` 65 joui-.nailed in suitable bearings on the derrick iioor and oneof'fthem operable by hand lever 6G. The, bull wheel shaft carries aloosesprocket Wheel 67, having a clutch jawengageahle by thejaw of a clutch member 68 splined on theshaft and operable by a lever 68, extending over the derrick Hoor.

Journalledv in standard bearings 69 on Vthe derrick door adjacent the bull wheel is. the shaft 70 ofY a-calf wheel 71. The calf wheel shaft carries a fixed` sprocket wheel 7 2 having a chain belt 7 3` runthereover and over a sprocket wheel 74 loose on the jack shaft 47.

Splined on the jack shaft is a clutch member 75 adapted for co-operation with a clutch member 7 6 on the sprocket wheel 74 under control of a lever 77 extending to and over the derrick lioor.

With the parts constructed and assembled as described, the drilling operation is performed in the usual manner, the walking beam being operated from the band wheel shaft as in ordinary practice, the cable suspending the tools being connected with a bull wheel.

Vhen the tools are to be pulled, the cable is disconnecti--d from the walking beam, the transmission connected with` the band wheel through the` clutch mechanism on the band wheel shaft and the jack shaft at therear ojli the derrick,operatively connected with the transmission through the clutch mechanism controlled by the lever 53 and the clutch on the bull wheel shaft. The bull wheel is then operated through the transmission to wind the cable and pull the tools. Then the tools are out of the well, they may be let down onto the derrick floor by reversing the transmission or held suspended by application of the bull wheel brake. Then they are tov be again let into the Well the rope is permitted to unwind under controly of the bull wheel brake, the transmission remaining in neutral.

The same operation takes place when the well casing is pulled. For pulling rods or tubing, a cable on thecalf wheel is employed7 calf wheel being rotated to wind the cable through, its connection with the jack shaft under control of the lever 77.

Arllhe sand reel is similarly employed for hailing, connection between thefsand, reel and transmission being controlled through theV clutch mechanism operable by they lever 43.

is apparent, therefore,that I have provided a simple, compact assembly of operating` mechanisms for theseveral elements of the drill outfit and that all of the elements may be individually controlled. from a. dei'- rick ioor,v and at different speeds, it being apparent that operation of the bull wheel carrying, the heavy tools or casing. may be operated at lowspeed but high power, whereas the calf Wheel and sand reel carigying the light load, and requiring less power may be operated at relatively high speeds, and that this variation in power and speed` may be effected through the single transmission mechanism and the changes, accomplished from a single control; position without requiring the operator to leave the, derrick tioor. y

It is further apparent that this variation in speed and reverse operation of the parts may be effected from the ordinary gas enginewithout reverse off the lowrvof power from the prime mQYer.

What I claim and desire to secure by Let-- ters Patent is:

In apparatus of the character described in- Y cluding a derrick vincluding posts, a band vwheel and a planetary gear speed change transmission, a bull wheelsupported by the derrick posts, a calf wheel located: 'against the buil wheel, bearings mounted on one of said bull wheel supporting derrick posts,a

j ack shaft mounted in oneV of said bearings and projecting from one side of said post, a counter shaft mounted in the other bearing and extending oppositely from said'post, al clutch controlled connection between the transmission and. thej ack -shaft for rotating the jack shaft in the same direction as the transmission, a clutch connection between the jack shaft and the calf wheel for rotating the Y calf wheel in the same direction asthe transv mission, meshed gears on the jack shaft and counter shaft for rotating the counter shaft v oppositely to the jack shaft, and a clutch controlled connection between thecounter shaft and the bull wheel for driving the bull Wheel from the counter shaft in reverse direction to the rotation of the jack shaft.

In testimony whereof I affix my signature.

' RICHARD C. MASON. 

